Curb bit with plastic mouthpiece



FIG. 1 is a top right rear perspecitve view of a curb bit with plastic mouthpiece showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left elevational view thereof; and,

FIG. 4 is a bottom plan view thereof.

A rear elevational view is identical to the front elevational view of FIG. 2. A right elevational view is identical to the left elevational view of FIG. 3. 

The ornamental design for a curb bit with plastic mouthpiece, as shown and described. 